NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, last 30 days
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2010-06-21 | 270-992 | 0–9 XXXall 10 · 4 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | MURRAY | KY |
| 2010-06-21 | 484-290 | 0–9 XXXall 10 · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | NEWSMITHVL | PA |
| 2010-06-21 | 580-312 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. | 235C | BROKEN BOW | OK |
| 2010-06-21 | 806-844 | 0XXX1XXX4XXX8XXX · 3 holders which blocks → | XIT TELECOMMUNICATIONS & TECHNOLOGY, INC. - TX | 7893 | DALHART | TX |
| 2010-06-21 | 940-279 | 0–9 XXXall 10 · 3 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | LAKEDALLAS | TX |
| 2010-06-18 | 204-418 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Sanford | — |
| 2010-06-18 | 204-601 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Anola | — |
| 2010-06-18 | 204-602 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Gladstone | — |
| 2010-06-18 | 204-603 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Elie | — |
| 2010-06-18 | 204-604 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Southport | — |
| 2010-06-18 | 204-605 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Macgregor | — |
| 2010-06-18 | 204-607 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Amaranth | — |
| 2010-06-18 | 204-608 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Treherne | — |
| 2010-06-18 | 204-609 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | St. Claude | — |
| 2010-06-18 | 204-839 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Edwin | — |
| 2010-06-18 | 204-840 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | St. Francois Xavier | — |
| 2010-06-18 | 204-964 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Oakville | — |
| 2010-06-18 | 204-965 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Elm Creek | — |
| 2010-06-18 | 204-973 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Somerset | — |
| 2010-06-18 | 204-974 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Swan Lake | — |
| 2010-06-18 | 336-481 | 0–9 XXXall 10 · 5 holders which blocks → | NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM | 0491 | THOMASVL | NC |
| 2010-06-18 | 480-336 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHOENIX | AZ |
| 2010-06-18 | 506-813 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. Stephen | — |
| 2010-06-18 | 506-814 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. Andrews | — |
| 2010-06-18 | 630-486 | 0–9 XXXall 10 · 3 holders which blocks → | AT&T ENTERPRISES, LLC | 516C | AURORA | IL |
| 2010-06-18 | 727-272 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | CLEARWATER | FL |
| 2010-06-18 | 786-484 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | MIAMI | FL |
| 2010-06-18 | 803-597 | 0–9 XXXall 10 · 7 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | NEWBERRY | SC |
| 2010-06-18 | 813-440 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPACEN | FL |
| 2010-06-18 | 941-549 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | SARASOTA | FL |
| 2010-06-17 | 347-363 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN09 | NY |
| 2010-06-17 | 347-364 | 0–9 XXXall 10 · 2 holders which blocks → | METROPCS, INC. | 5562 | NWYRCYZN03 | NY |
| 2010-06-17 | 506-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Moncton | — |
| 2010-06-17 | 507-586 | 0XXX1XXX7XXX · 3 holders which blocks → | MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | LYLE | MN |
| 2010-06-17 | 507-587 | 1XXX8XXX9XXX · 2 holders which blocks → | MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | RED DEL | MN |
| 2010-06-17 | 507-638 | 1XXX which blocks → | MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | LAKEBENTON | MN |
| 2010-06-17 | 507-857 | 0XXX1XXX2XXX5XXX7XXX · 4 holders which blocks → | MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | LEROY | MN |
| 2010-06-17 | 514-549 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2010-06-17 | 514-589 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2010-06-17 | 514-619 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2010-06-17 | 514-641 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2010-06-17 | 574-363 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX · 6 holders which blocks → | MCC TELEPHONY OF THE MID-WEST, LLC - IN | 874F | BOURBON | IN |
| 2010-06-17 | 604-300 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Abbotsford | — |
| 2010-06-17 | 716-221 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | CLARENCCTR | NY |
| 2010-06-17 | 778-332 | not yet reported which blocks → | Bell West Inc. | 2933 | 100 Mile House | — |
| 2010-06-17 | 778-333 | not yet reported which blocks → | Bell West Inc. | 2933 | Williams Lake | — |
| 2010-06-17 | 778-334 | not yet reported which blocks → | Bell West Inc. | 2933 | Quesnel | — |
| 2010-06-17 | 778-335 | not yet reported which blocks → | Bell West Inc. | 2933 | Courtenay | — |
| 2010-06-17 | 778-336 | not yet reported which blocks → | Bell West Inc. | 2933 | Campbell River | — |
| 2010-06-17 | 803-724 | 0–9 XXXall 10 · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | COLUMBIA | SC |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.